Conjugation of underperform [v.]
-underperform
Iunderperform
youunderperform
heunderperforms
weunderperform
youunderperform
theyunderperform
Iunderperformed
youunderperformed
heunderperformed
weunderperformed
youunderperformed
theyunderperformed
Iwillunderperform
youwillunderperform
hewillunderperform
wewillunderperform
youwillunderperform
theywillunderperform
Ihaveunderperformed
youhaveunderperformed
hehasunderperformed
wehaveunderperformed
youhaveunderperformed
theyhaveunderperformed
-underperforming
-underperformed